A horse grazes in a pasture in early morning fog caused by frost-producing overnight temperatures in Chia, on the outskirts of Bogota, Colombia, Wednesday, Jan. 9, 2013. In Colombia's highlands, crops are prone to freeze damage in the first few months of the year when temperatures are high during the day but drop below zero at night.

Photo: Fernando Vergara, Associated Press

A horse grazes in a pasture in early morning fog caused by...

A horse grazes in a pasture in early morning fog caused by... Photo-4008916.54916 - SFGate

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In this Tuesday, Jan. 8, 2013 photo provided by Marina Lacasse, a killer whale surfaces through a small hole in the ice near Inukjuak, in Northern Quebec. Mayor Peter Inukpuk urged the Canadian government Wednesday to send an icebreaker as soon as possible to crack open the ice and help the pod of about a dozen trapped orcas find open water. The Department of Fisheries and Oceans said it is sending officials to assess the situation.

Argentina's naval training tall ship ARA Libertad arrives to port as planes fly overhead during a ceremony in Mar del Plata, Argentina, Wednesday, Jan. 9, 2013. The Argentine naval ship detained for more than two months in Ghana because of a financial dispute returned home to a triumphant welcome. Ghana courts ordered the ship held in October on a claim by Cayman Islands-based hedge fund NML Capital Ltd. But the U.N.'s International Tribunal for the Law of the Sea ordered the ship's release last month after Argentina argued that warships are immune from seizure. (AP Photo/Natacha Pisarenko)

Passengers make their way in and out of Baker Street Underground Station on January 9, 2013 in London, England. The London Underground commonly called the Tube, is the oldest of its kind in the world, and marks it's 150th anniversary on January 10, 2013. The network carries approximately a quarter of a million people around its network of 249 miles of track every day. The Baker Street station has more platforms than any other on the network with 10, and is one of the oldest of the 270 stations on the entire network.

Photo: Dan Kitwood, Getty Images

Passengers make their way in and out of Baker Street Underground...

Passengers make their way in and out of Baker Street Underground... Photo-4007344.54916 - SFGate

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Yamaha rider David Casteu of France rides on a stretch of fesh-fesh during the 5th stage of the 2013 Dakar Rally from Arequipa, Peru, to Arica, Chile, Wednesday, Jan. 9, 2013. The race finishes in Santiago, Chile, on Jan. 20.

Photo: Victor R. Caivano, Associated Press

Yamaha rider David Casteu of France rides on a stretch of fesh-fesh...

Yamaha rider David Casteu of France rides on a stretch of fesh-fesh... Photo-4008919.54916 - SFGate

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Gael Monfils of France plays a backhand in his second round match against Greg Jones of Australia during day three of the Heineken Open at ASB Tennis Centre on January 9, 2013 in Auckland, New Zealand.

Photo: Sandra Mu, Getty Images

Gael Monfils of France plays a backhand in his second round match...

Gael Monfils of France plays a backhand in his second round match... Photo-4008915.54916 - SFGate

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South Korean special warfare forces take part in a winter season drill in Pyeongchang, about 180 km east of Seoul on January 9, 2013. The Korean peninsula is the world's last Cold War frontier as Stalinst North Korea and pro-Western South Korea have been technically at war since the 1950-53 conflict.

Photo: Dong-a Ilbo, AFP/Getty Images

South Korean special warfare forces take part in a winter season...

South Korean special warfare forces take part in a winter season... Photo-4006397.54916 - SFGate

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An Ultra orthodox Jewish man looks at a rainbow over the Mediterranean sea in Tel Aviv, Israel, Wednesday, Jan. 9, 2013. The rainbow follows one of the region's fiercest rainstorms in decades.

A picture taken from Galata Tower shows a seagull flying over the snow-covered old city of Istanbul on January 9, 2013. Heavy snowfall blanketed Turkey's commercial hub Istanbul, a city of 15 millions, paralysing daily life, disrupting air traffic and land transport.

Photo: Bulent Kilic, AFP/Getty Images

A picture taken from Galata Tower shows a seagull flying over the...

A picture taken from Galata Tower shows a seagull flying over the... Photo-4008917.54916 - SFGate

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A Syrian refugee stands on top of a water tank at Zaatari refugee camp, near the Syrian border in Mafraq, Jordan, Wednesday, Jan. 9, 2013. The unusual weather was a particularly harsh blow for the vulnerable Syrian refugees, especially about 50,000 sheltering in the Zaatari tent camp in Jordan's northern desert. Torrential rains over the past four days have flooded 200 tents and forced women and infants to evacuate in temperatures below freezing at night, whipping wind and lashing rain.

Photo: Mohammad Hannon, Associated Press

A Syrian refugee stands on top of a water tank at Zaatari refugee...

A Syrian refugee stands on top of a water tank at Zaatari refugee... Photo-4008925.54916 - SFGate

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In this Jan. 4, 2013, photo provided by the Holmes family, Tammy Holmes, second from left, and her grandchildren, two-year-old Charlotte Walker, left, four-year-old Esther Walker, third from left, nine-year-old Liam Walker, eleven-year-old Matilda, second from right, and six-year-old Caleb Walker, right, take refuge under a jetty as a wildfire rages near-by in the Tasmanian town of Dunalley, east of the state capital of Hobart, Australia. The family credits God with their survival from the fire that destroyed around 90 homes in Dunalley. Record temperatures across southern Australia cooled Wednesday, Jan. 9, 2013, reducing the danger from scores of raging wildfires but likely bringing only a brief reprieve from the summer's extreme heat and fire risk.

A puppy that was caught near the site of four fatal maulings sits inside a cage at a city dog pound in Mexico City,Wednesday, Jan. 9, 2013. Authorities have captured dozens of dogs near the scene of the attacks in the capital's poor Iztapalapa district, but rather than calm residents, photos of the forlorn dogs brought a wave of sympathy for the animals, doubts about their involvement in the killings and debate about government handling of the stray dog problem.

Photo: Dario Lopez-Mills, Associated Press

A puppy that was caught near the site of four fatal maulings sits...

A puppy that was caught near the site of four fatal maulings sits... Photo-4008924.54916 - SFGate

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A police officer stands on duty at Monkland Cemetery as forensic officers continue to exame a burial plot on January 9, 2013 in Coatbridge, Scotland. Forensic specialists are exhuming remains at a gravesite in search of 11 year old school girl Moira Anderson, who went missing in 1957.